review functions and scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two variables by displaying data points on a two-dimensional plane.

Tags

CCSS.8.SP.A.1

Front

What does it mean for y to be a function of x?

Back

It means that for every value of x, there is exactly one corresponding value of y.

Tags

CCSS.8.F.A.1

Front

What is a linear relationship?

Back

A linear relationship is a relationship that can be represented by a straight line on a graph.

Tags

CCSS.HSF-LE.A.1B

Front

What does a positive correlation in a scatterplot indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also increases.

Tags

CCSS.HSS.ID.B.5

Front

What does a negative correlation in a scatterplot indicate?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Tags

CCSS.HSS.ID.B.5

Front

What is no association in a scatterplot?

Back

No association means there is no discernible relationship between the two variables.

Tags

CCSS.HSF-LE.A.1B

Front

What is a non-linear association?

Back

A non-linear association is a relationship between two variables that does not form a straight line when graphed.

Tags

CCSS.8.F.A.3

Front

How can you identify a linear relationship in a scatterplot?

Back

A linear relationship can be identified by a pattern of points that closely follow a straight line.

Tags

CCSS.8.F.A.3

Front

What is the purpose of using scatterplots?

Back

Scatterplots are used to visually represent the relationship between two quantitative variables.

Tags

CCSS.8.SP.A.1

Front

What does it mean if a scatterplot shows a cluster of points?

Back

A cluster of points indicates that there is a strong relationship between the two variables in that range.

Tags

CCSS.HSF-LE.A.1B